Tiny Particles of Iron-Bearing Magnetic Minerals, Such as , Act

question 4

Multiple Choice

Tiny particles of iron-bearing magnetic minerals, such as , act as a compass needle at mid-ocean ridges when magma erupts and cools recording Earth's magnetic field.

• A) quartz
• B) muscovite
• C) magnetite
• D) hornblende

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Definitions:

Protons

Positively charged particles located within an atom's nucleus, contributing to the atom's mass and defining the element's atomic number.

pH Scale

A scale used to specify the acidity or basicity of an aqueous solution, ranging from 0 to 14.

Hydrochloric Acid

A strong, corrosive acid that is a component of gastric juice in the stomach, aiding in digestion and sterilizing ingested food.

Acidic

Having a pH less than 7, typically described for solutions that have a higher concentration of hydrogen ions.